Bug 2213126

Summary: OVN security group logging - burst limit unexpected value
Product: Red Hat OpenStack Reporter: Eran Kuris <ekuris>
Component: openstack-neutronAssignee: Elvira <egarciar>
Status: ASSIGNED --- QA Contact: Maor <mblue>
Severity: medium Docs Contact:
Priority: high    
Version: 17.1 (Wallaby)CC: apevec, chrisw, ctrautma, egarciar, ekuris, gthiemon, jamsmith, jiji, jishi, lhh, majopela, mblue, ovnteam, pgrist, scohen, twilson
Target Milestone: z1Keywords: Triaged
Target Release: 17.1Flags: mblue: needinfo? (jamsmith)
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Known Issue
Doc Text:
The logging queue that buffers excess security group log entries sometimes stops accepting entries before the specified limit is reached. As a workaround, you can set the queue length higher than the number of entries you want it to hold. + You can set the maximum number of log entries per second with the parameter `NeutronOVNLoggingRateLimit`. If the log entry creation exceeds that rate, the excess is buffered in a queue up to the number of log entries that you specify in `NeutronOVNLoggingBurstLimit`. + The issue is especially evident in the first second of a burst. In longer bursts, such as 60 seconds, the rate limit is more influential and compensates for burst limit inaccuracy. Thus, the issue has the greatest proportional effect in short bursts. + Workaround: Set `NeutronOVNLoggingBurstLimit` at a higher value than the target value. Observe and adjust as needed.
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Clone Of: 2212952 Environment:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2212952    
Bug Blocks: 1619266